1) The smallest thing in the organization of the body is the: a) organism b) tissue c) organ d) cell 2) The largest thing in the organization of the body is: a) the cell b) tissue c) organ system d) organism 3) Which system provides shape and support to the body and has tough bands that connect bone to bone? a) circulatory system b) Skeletal system c) digestive system d) reproductive system 4) What cushions the end of your bones? a) heart b) blood c) cartilage d) ligaments 5) Which of these is a function of the skeletal system? a) carrying needed substances to cells b) producing red blood cells c) carrying waste products away from your body d) digesting food 6) Which system stores minerals until your body needs them? a) skeletal system b) circulatory system c) digestive system d) brain system 7) Which of the following does the circulatory system do? a) carries needed substances to cells b) carries waste products away from cells c) contains both white and red blood cells d) All of these. (All of the above.) 8) Which of these is NOT part of the circulatory system? a) bones b) heart c) blood vessels d) blood 9) The liquid part of blood that is 92% water and 55% blood is: a) a red blood cell b) a white blood cell c) plasma d) platelets 10) ____________ carry oxygen and have a protein in them called hemoglobin. a) White blood cells b) Red blood cells c) Ligaments d) Nerves  11) We fight infection through: a) red blood cells b) ligaments c) white blood cells d) bones 12) ____________ are responsible for clotting blood. a) White blood cells b) Red blood cells c) Ligaments d) Platelets 13) _________ carry oxygen rich blood away from the heart. a) Arteries b) Veins c) Capillaries d) Spines 14) Veins are responsible for: a) carrying oxygen rich blood away from the heart b) fighting infection c) carrying oxygen poor blood to the heart d) taking away waste 15) The part of the circulatory system that serves as the “middle man” and connects veins and arteries are known as: a) plasma b) an organ system c) tissue d) capillaries 16) Which of these delivers nutrients, oxygen, and hormones? a) capillaries b) veins c) arteries d) tissue 17) Most of our blood is: a) white blood cells b) red blood cells c) platelets d) plasma 18) Cartilage can be found in: a) your ears and nose b) your eyes and eyelashes c) your heart and liver d) your stomach and intestine 19) Ligaments: a) are tough bands that connect bone to bone b) decrease friction between bones c) carry needed substances to bones d) are tiny “middle men” that connect veins to arteries 20) In order of smallest to largest, what is the correct order for the organization of the body? a) cell—> organ—>tissue—>organism—> organ system b) organism—> organ system—> organ—> tissue—> cell c) organ--> organism—> organ system—> cell—> tissue d) cell—> tissue—> organ—> organ system—>organism 21) A group of organs working together is known as a: a) cell b) tissue c) organ system d) organism 22) All of the organ systems working together creates a(n): a) cell b) organism c) tissue d) red blood cell 23) Blood plasma makes up_______ of our blood. a) 92% b) 1% c) 55% d) 45%

Skeletal System and Circulatory System

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